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research interests center on the use of virtual worlds technologies to enhance group-based learning. (Euridis) in rotterdam, the Nether-lands. he has also been a Wharton research Fellow at the University of Pennsylvania. Previously, he was associate Professor of Information Systems at the University of texas at austin, and earlier served as a research(More)
This paper examines the influence and direction of social and economic determinants of the HIV/AIDS global epidemic across nations and assesses each country's efficiency in battling the pandemic. The initial dataset consisted of 151 countries with five dependent variables and 90 explanatory variables (reduced to 50 after extensive exploratory data analysis(More)
AbstrAct Information Systems (IS) effectiveness has been studied over the past three decades, with user satisfaction utilized as a key measure. However, very little attention has been given to the role of user-perceived cogni-tive value of IS in measuring the effectiveness of such systems. Therefore, this article defines and articulates user-perceived value(More)